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A refrigerator has to transfer an average of 263 J of Heat per second from -10°C to 25°C.Calculate the average power consumed. Assume that the refrigerator is ideal.
A 1200 kg car carrying four 77 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. By how much does the car body rise on its suspension owing to this decrease i..
An electric field exerts a force of 3.00 x 10 -4 N on a positive test charge of 7.50 x 10 -4 C. Find the magnitude of the field at the charge location
A test on an open loop Brayton cycle gas turbine produced the given results:- Determine the cycle thermal efficiency.- The isentropic efficiency of the turbine.
If a soccer ball that is stationary and has a mass of .45 kg is kicked by a player and leaves his foot at 23 m/s, what s the average force applied to the ball by the foot
A 3-m2 hot black surface at 80°C is losing heat to the surrounding air at 25°C by convection with a convection heat transfer coefficient of 12 W/m2.°C, Determine the total rate of heat loss from the surface
A large solid spool, with mass 60 kg and radius 50 cm, is wrapped with a long piece of lightweight rope. After the motor is switched on, how long will it take the large spool to reach a rotation speed of 30 revolutions per minute
Astronaut Buzz throws a ball horizontally on the planet SeeSUN with a speed of 5.25m/s. the ball falls through a vertical distance of 1.92m and lands a horizontal distance of 16.4m from the astronaut. what is the acceleration due to gravity on SeeSun..
When the Boltzmann approximation is valid for computing the electron concentration, is it also valid for computing the hole concentration? Give two examples, one showing the true and the other, the false answer.
The current flowing in a copper wire is 4.0 A. determine the time needed for the current to travel 6.0 m along the wire
An electric dipole consists of charges +2e and -2e separated by 0.78nm. It is in an electric field of strength 3.4 x 106 N/C. Calculate the magnitude of the torque on the dipole
A +5.0?C charge experiences a 0.47-N force in the positive y direction. If this charge is replaced with a - 2.7{\rm{ - }}\mu {\rm{C}} charge, find the magnitude of the force in this case
A proton having an initial velocity of 17.2i hat bold Mm/s enters a uniform magnetic field of magnitude 0.360 T with a direction perpendicular to the proton's velocity. Determine the time interval for which the proton is in the field
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